The Goose Mecha[note 1] (ガチョウメカ[1] Gachoumeka?) is the Master Robot of Sky High Zone in Sonic the Hedgehog 2 (8-bit). It is a large robotic goose that hides in the clouds built by Dr. Robotnik, and is the second boss of the game.

Attack pattern


Sonic fighting Goose Mecha.

Goose Mecha will first shoot four Mecha Hiyoko that will jump about the arena. If Sonic lands a successful hit, it will fall under the clouds to avoid being damaged. It will shoot another wave of the robot birds once more, then it will reemerge from beneath the clouds. It will shoot out a red energy blast, then it will bounce around the arena. To defeat the goose, Sonic must successfully land six hits.


  • "Gachou" in Japanese translates to "goose" in English.
  • This boss has not been given an name in the western releases of Sonic the Hedgehog 2 (8-bit).


  1. The name is a fan-localization of the Japanese name, which is the only one currently available.


  1. Sonic the Hedgehog 2 (Game Gear) Japanese instruction manual, pg. 27.